'Supernatural' star Misha Collins hints at season finale

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Supernatural star Misha Collins has dropped hints about the seventh season finale.

Collins revealed that his character Castiel will be reluctant to aid the Winchesters in their fight against the Leviathans.

"It comes down to one final confrontation with Dick Roman (James Patrick Stuart)," said the actor. "The only problem is - from my character's perspective - it's difficult for me to really be of substantial assistance in this project."